States of Matter. Matter All matter is made up of atoms Matter is anything that has mass and takes up space. An atom is the smallest particle of an element.
Post on 29-Dec-2015
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Matter
• All matter is made up of atoms
• Matter is anything that has mass and takes up space.
• An atom is the smallest particle of an element.
• “Atomos” = Latin word for “cannot be divided”
What is the difference between mass and weight?
• Mass – the amount of material or matter that makes up an object
• Weight – the measure of the pull of gravity on an object
Matter
Mixture: 2 or more substances are mixed together but each substance retains its own properties. Each substance can be separated.
Example: Salads; trail mix
Matter
• Solution: A mixture in which a substance is dissolved in another liquid and the substances are evenly distributed.
• Water + Sugar
Matter
• Solvent: The liquid of a solution
• Solute: The substance being dissolved in the liquid.
• Water + Sugar
Matter
• Combustibility – the ability to burn
• Reactivity – the ability of a substance to react chemically
• Solubility – the ability of a substance to dissolve
Atoms
• All atoms are made of three particles:
• Protons – positive charge +
• Electrons – negative charge -
• Neutrons – no charge - neutral
Atoms
• The nucleus contains neutrons and protons
• The electrons orbit the nucleus
• Compounds form when atoms combine with each other.
• The atomic number is the number of protons in the nucleus.
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